Thank you very much!

regards
Simon
Am 6/30/2011 3:01 PM, schrieb Ray Zimmerman:
On Jun 28, 2011, at 10:17 AM, Simon Schneider wrote:

Assuming I set all the coefficients and startup/shutdown costs in de 
mpc.gencost field to zero that means I get an objective function equal to zero, 
right?
Correct.

When I run an optimal power flow afterwards, on which criterion ist the 
optimization based?
It simply becomes a problem of finding a feasible solution.

I´m guessing the calculation is then a conventional power flow obeying also the 
inequality constraints. Is that correct?
Almost ... in a conventional power flow, the power injection and the voltage 
magnitude at each generator bus is specified. In the OPF it both are only 
constrained by upper and lower bounds. You could set the bounds to your 
specified PG and VG values if you wanted, then it would be what you describe.



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